The main story (of which, this first chapter is sort of the prologue to) is about a couple, who are rivals in the world of high school Go (As in the Japanese board game).

From MangaHelpers:

No one can make the perfect decision every time. Everyone has those moments that they wish they could redo and alter their decision. This story revolves around girls that got their second chance. [DrCoke]

From MangaHelpers:
This is a collection of 4 short stories. One story tells of the ghost of a pretty girl who died too young. She has unfinished business, particularly with the boy she likes, and she's willing to possess someone to deal with it. Another features a girl who is hosting a genius boy in her home, where she lived alone. She was looking forward to his arrival, but he seems to be unexpectedly unsociable and unfriendly. Is there some way the relationship between them can grow?

"A girl lives in a small, quiet town by the sea, where life moves slowly and she is unable to move on."

Miki Tamura can read people like a book. To maintain his happy home-life and to please people, it's a skill he's learned to acquire. But what happens when he meets someone that he can't read so easily?

Note that this manga is 4 chapters which never received a book (tankoubon) release. It's a partial adaptation of a 2-volume novel series also illustrated by Yumeka Sumomo.

Straightforward Yamada Hirono falls in love with Ogata who gives his all for baseball. As her number of unsuccessful confessions climbs to the double digits, his wish for her to leave him in peace to pursue his sport finally seems to get through to her. Will she really stay away or will she be there to push his back when things get tough?
A romantic comedy between a spunky, strong girl and a rigid but dedicated guy.

Tribute anthology for Azumanga's 10th anniversary, by various artists.

From Moi-xRyu Scanlations:

1-3+extra) Every morning high-school student Nanami catches sight of this one surfer he secretly begins to admire. Incidentally, however, it is later on a certain day that they reunite in a classroom! Turns out that this one-year-older senpai, named Shuu, is in fact one who, while characteristically mature, is unsociable to the extent that he’s even notorious for being someone difficult to approach. Even so, for some reason, Nanami becomes the sole person that he can smile at and laugh with, over and over again… As they repeatedly spend more time together after school, by midsummer, Nanami finds himself receiving a kiss near the seaside?! And so, a story of dazzling first love ensues.

4-5) Kamatte Kawaii Hito
In order to overcome his debilitating fear of cats, Natsumi Hayato goes to visit a cat cafe. But could his reaction to one of the staff he meets there be even more difficult to conquer than his phobia?

From Bakeneko Scanlations:

"When we met, I fell in love with you..."

The novelist Sakaguchi was troubled. When Sakaguchi took in a weak kitten, the high schooler Kazuya, who comes to the his house to visit the cat, suddenly confessed. He thought it was just childish nonsense, but while usually being quiet, the Kazuya who is confesed his love awkwardly while his ears became red, seemed cute to Sakaguchi. But... adult love also entails sex, right?

The love between the rough novelist and clumsy high schooler.

A young woman makes some preparations to move. While emptying a drawer she finds a well-hidden damaged cup. What is the story behind the carefully stored dish? Entry for the Silent Manga Audition.

Tsukiko loves to sleep and spends every opportunity to do so. As a usual activity, she has slept at the school roof, however she finds a guy sleeping next to her! This same guy, also have asked her to sleep next to him in order to help him with his sleeping problems. This guy (dun dun dun) happens to also be that very popular guy that is the prince of the school. As they spend more time together, it's harder and harder for Tsukiko to get the sleep that she usually gets...

From Nakama:

1) Shampoo
Two men who are endowed with different pheromones - coworkers Miyake and Koshikawa. Once enticed by that scent, soon these two are drawn close together in a relationship... are these newly born emotions love? Or lust?

2) Relation of promise.

3) Wedding.

4) Sugared words.

5) The future that was born from incandescence.

From Chibi Manga:

I'd like that you feel the same than me...
Five stories about sweet and painful loves.

1. Kimi to Kiss Shitai. by Makino
Sugi-san had witnessed her player classmate Ryou hitting on her homeroom teacher. Sugi hates his type the most, however, he seems to take a liking to her...?!

2. Sensei, Anone. by HARUKI Saki
Yara Ikumi has fallen in love with her sensei! She often tries to confess to him, but he bluntly rejects her. Can she ever succeed in winning his heart?

3. Kanpeki Kareshi Kanojo - Water-Proof Passion by MIYOSHI Maki
Kawahara Natsu thinks that Ichijou is the perfect boyfriend material, so she confessed to him! But he rejected her, saying he wanted someone cuter! What will Natsu do? Keep loving him (a bit delusionally) of course, but will she ever get him to change his mind?

4. Hoshigari na Honey -Saya by KURAMOCHI Mari
Saya is in love with Kudou-senpai, but he sleeps around and never would accept anyone to be his girlfriend. Saya then proposes to him that she will be his friend with benefits. Can Saya stay as a sex buddy, as she falls for her beloved senpai more?

5. Koi, Kakueki Teisha - Secret Train by KITAGAWA Yuka
Chika has had lied that she had a boyfriend to her friends. What will she do? But then, she meets a handsome guy that accidentally hurt her. In compensation, she asked him to be her pretend boyfriend, in which he accepts. Even though they're only pretending, Chika may be falling for him!?

From Promfret: Sakuraba Kenji is an aspiring baseball player, however due to some circumstances he gave up on baseball, and moved to a new High School so that he is able to give up on it totally. On the day that he visit the new school he will be attending, he meets a girl, Mamiya Itsuka who mistakenly does something to him, causing him to faint. When he awakes, he realizes that the place he will be staying at is Itsuka's home!

Ichijou is asked to say "I like you" to Hankai, even if it's a lie, just because he wants to know how it feels like! But, is Ichijou really lying when she said that...? Cute 17 page oneshot!

From Aerandria Scans:

“Love Song” - those are the three love stories of three young girls who find their own feelings reflected in beautiful songs. The scribbles on a bench, memories of childish days, feelings echoing in the classroom but cannot reach that person…

From Midnight Scans:

What does it mean to love? Most of the time, I don't know... Falling in love with someone always ends up with a farewell. Encounters in which you can meet a kind man are very rare. For someone to tell me, "Momo-chan, I love you very much~ ♪" and to caress me with a smile... I don't understand the meaning of those things. Still, that kind of behavior gives me a warm feeling and makes my head spin.

Collection of short stories:

• Kimi wo Omou Toki

• Ryakudatsu Egotist

• Sokubaku Darling

From Midnight Scans & Intercross:

Welcome to the School Hotel, where the people who can't show their true self at the afternoon school, can be themselves. One day, Amano Toriko, a popular honors student at Kenrin High School was invited to the School Hotel??

Includes:
4&4.5) Turn Around Tsukada!
The daughter of a company chairman has loved her driver/assistant since she was a little girl. 6 years later, her love is still unrequited... however, an omiai has been arranged. Will she finally be able to let go of her love, or perhaps her love will not allow her to?
The extra is about her half-brother's perspective on the whole thing.


7.5) Houkenshitsu no Kimyouna Juunin
A boy yearns for the one he loves, but the two are caught in a twisted web of family problems.

Yamato Yura arrives at her new high-school dormitory and makes friends right away-- her cute roommate Sonora, and Sonora's friends Karira and Honoka. However, these girls all seem to have model air-guns, and, before Yura knows it, they've convinced her to join a club called C-cubed. Only after joining does she fully understand the meaning: Command, Control, and Communication. C-cubed is a club for people into survival games! Will little Yura really be able to handle herself among her new friends?